| 过冷状态下二维枝晶生长的相场方法模拟 |
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| 引用本文： | 陈皓,高明,李银芳,朱芳园,朱延楠.过冷状态下二维枝晶生长的相场方法模拟[J].沈阳航空工业学院学报,2006,23(2):83-85. |
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| 作者姓名： | 陈皓 高明 李银芳 朱芳园 朱延楠 |
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| 作者单位： | 沈阳师范大学物理科学与技术学院,辽宁,沈阳,110034 |
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| 摘 要： | 通过相场理论建立了纯物质镍在过冷溶液中枝晶生长的相场模型。把相场方程和温度场方程进行耦合,建立了相对应的相场模型。该模型以熵增加函数为基础,通过熵增加函数推导出热力学一致性的相场控制方程。利用上述的模型和方法在计算机上编制二维组织凝固模拟程序得出结论,各向异性强度影响枝晶尖端生长速度,过冷度决定凝固速度的快慢。
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| 关 键 词： | 相场方法 枝晶生长 数值模拟 |
| 文章编号： | 1007-1385(2006)02-0083-02 |
| 修稿时间： | 2005年10月10 |
The 2-D dendritic growth in the supercooled state using the Phase Field Method |
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| CHEN Hao,GAO Ming,LI Yin-fang,ZHU Fang-yuan,ZHU Yan-nan.The 2-D dendritic growth in the supercooled state using the Phase Field Method[J].Journal of Shenyang Institute of Aeronautical Engineering,2006,23(2):83-85. |
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| Authors: | CHEN Hao GAO Ming LI Yin-fang ZHU Fang-yuan ZHU Yan-nan |
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| Abstract: | In this dissertation we set up a model of dendrtic growth for pure material Ni in supercooled liquid.This model coupled the equations of the phase field and the temperature field.The entropy increase function,we has derived the phase field controlling equations which are thermodynamical consistent.With the above model and method,we draw up the program of the 2-D solidification microstructure.We draw the conclusion:The anisotropy intensity influence growth speed of dendritic peak,supercooled state influence the rate of solidification. |
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| Keywords: | phse-field method dendritic growth numerical simulation |
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